To deal with computer keyboard, we have to know what kind of signal did keyboard giving when you press a key. For this project, we are going to interface the Arduino Duemilanove to computer through USB.

Universal Asynchronous Receive/Transmit (UART) has becoming a popular item on sending and receiving data in the fast way. In here, we are going to experience on how to use UC00A to communicate with our computer/PC and SK40C.